c#中如何退出程序后自动重新启动程序

//触发退出程序事件
private void button1_Click(object sender, EventArgs e)
{
Application.ExitThread();
Thread thtmp = new Thread(new ParameterizedThreadStart(run));
object appName = Application.ExecutablePath;
Thread.Sleep(1);
thtmp.Start(appName);
}
private void run(Object obj)
{
Process ps = new Process();
ps.StartInfo.FileName = obj.ToString();
ps.Start();
}

注：Process 的命名空间为：System.Diagnostics;